UGC 8508 | |
---|---|
![]() UGC 8508 (Hubble Space Telescope) | |
Observation data (J2000 epoch) | |
Constellation | Ursa Major |
Right ascension | 13h 30m 44.4s |
Declination | +54° 54′ 36″ |
Redshift | +198 km/s |
Distance | 8.500 ± 0.075 Mly (2.606 ± 0.023 Mpc)[1] |
Apparent magnitude (V) | 12.88 |
Characteristics | |
Type | IAm |
Size | 1.29 kpc |
Apparent size (V) | 1.7′ × 1.0' |
Other designations | |
I Zw 060, PGC 47495 |
UGC 8508 is a dwarf irregular galaxy located about 8.5 million light-years away from Earth in the constellation of Ursa Major.[1] It is sometimes classified as a member of the M101 Group of galaxies and has a diameter of around 4.2 kly (1.29 kpc).
As an irregular galaxy, UGC 8508 does not exhibit any large scale organization in its structure. It has a bluish appearance when viewed in the visible spectrum and although it has a large number of H I regions, it has a relatively low-luminosity overall. However, the presence of a significant number of both blue and red supergiant stars indicate it is likely to have undergone a period of rapid star formation in the cosmologically recent past. The distribution of the supergiants suggests that star formation has largely ceased at distances greater than 1.3 kly (0.4 kpc) from the center of the galaxy.[2]
References
[edit]- ^ a b "NED results for UGC 8508". NASA/IPAC Extragalactic Database via Univ. of California. Retrieved 2024-02-15.
- ^ J. R. Mould; D. P. Schneider; P. Harding & G. D. Bothun (1986). "UGC 8508 - A Dwarf Galaxy Associated with the M101 Group". Publications of the Astronomical Society of the Pacific. 98 (606): 732–739. doi:10.1086/131819.
External links
[edit]Media related to UGC 8508 at Wikimedia Commons
Well, that’s interesting to know that Psilotum nudum are known as whisk ferns. Psilotum nudum is the commoner species of the two. While the P. flaccidum is a rare species and is found in the tropical islands. Both the species are usually epiphytic in habit and grow upon tree ferns. These species may also be terrestrial and grow in humus or in the crevices of the rocks.
View the detailed Guide of Psilotum nudum: Detailed Study Of Psilotum Nudum (Whisk Fern), Classification, Anatomy, Reproduction